Ultraviolet continuous spectra of gamma Cassiopeia

Details Ultraviolet continuous spectra of gamma Cassiopeia Ultraviolet continuous spectra of gamma Cassiopeia

May 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975a%26a....40..447g&link_type=abstract

Astronomy and Astrophysics, vol. 40, no. 4, May 1975, p. 447-450.

Astronomy and Astrophysics

Astrophysics

4

B Stars, Continuous Spectra, Stellar Spectra, Ultraviolet Spectra, Absorption Spectra, Densitometers, Emission Spectra, Spectral Energy Distribution

Scientific paper

Ultraviolet spectrograms of gamma Cas in the wavelength region from 2000 to 3800 A have been obtained by the space observatory 'Orion-2'. The distribution of energy in the ultraviolet for gamma Cas is derived. Two broad humps in this distribution curve at approximately 2200 A and 2600 A are discovered which probably are the result of blending of emission lines. The most important feature in the spectrum of gamma Cas is considered to be the occurrence of a powerful and very wide depression in the continuum at 2800 A. A possible extraordinary equivalent width is found for the magnesium absorption lines, 2800 Mg II and 2852 Mg I, in the spectrum of gamma Cas, an emission-line star.

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